I found Prince of Persia VERY atmospheric, but the password system is
straight from the Master System and not optimised for a dinky screen,
many letters are very difficult to recognise on lter levels, leaving you
to guesswork "Is it a D? or an O? or a Q?" etc. Still very good though.

Fantastic Dizzy, Cosmic Spacehead, Micro Machines, and most of the stuff
by Codemasters was worth playing.

That's all I can think of for now, except for the essential Columns of
course.
.